Toyota PRIUS Manual page 290

2-1. Driving procedures
Reverse warning buzzer

When shifting into R, a buzzer will sound to inform the driver that the shift
position is in R.
 Automatically P position selection function
When the shift position is in a position other than P, pressing the "POWER"
switch with the vehicle stopped completely will cause the shift position to
change to P automatically, and then the "POWER" switch will turn off.
 If the shift position cannot be shifted from P
There is a possibility that the 12-volt battery is discharged. Check the 12-volt
battery in this situation. (P. 619)
 About engine braking
When shift position B is selected, releasing the accelerator pedal will apply
engine braking.
 When the vehicle is driven at high speeds, compared to ordinary gaso-
line-fueled vehicles, the engine braking deceleration is felt less than that
of other vehicles.
 The vehicle can be accelerated even when shift position B is selected.
If the vehicle is driven continuously in the B position, fuel efficiency will
become low. Usually, shift the shift position to D.
 When canceling Eco drive mode
Press the switch again. Eco drive mode will not be canceled automatically
until the switch is pressed, even if the "POWER" switch is turned off.
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